Valley Falls State Park was created in 1964.
Goblin Valley State Park was created in 1964.
Poe Valley State Park was created in 1938.
Spring Valley State Park was created in 1969.
Valley of Fire State Park was created in 1935.
Clifty Falls State Park was created in 1920.
McKinney Falls State Park was created in 1976.
Kent Falls State Park was created in 1919.
Falls of the Ohio State Park was created in 1990.
Copper Falls State Park was created in 1929.
Silver Falls State Park was created in 1936.
Blackwater Falls State Park was created in 1937.
Niagara Falls State Park was created in 1885.